80747670 has 16 divisors (see below), whose sum is σ = 193794480. Its totient is φ = 21532704.

The previous prime is 80747669. The next prime is 80747677. The reversal of 80747670 is 7674708.

It is a happy number.

It is a super-3 number, since 3×80747670³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80747677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345765 + ... + 1345824.

It is an arithmetic number, because the mean of its divisors is an integer number (12112155).

Almost surely, 2^80747670 is an apocalyptic number.

80747670 is an abundant number, since it is smaller than the sum of its proper divisors (113046810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80747670 is a wasteful number, since it uses less digits than its factorization.

80747670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691599.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 80747670 is about 8985.9707322025. The cubic root of 80747670 is about 432.2251162958.

The spelling of 80747670 in words is "eighty million, seven hundred forty-seven thousand, six hundred seventy".